Thomas de Hartmann

Thomas Alexandrovich de Hartmann (Russian: Фома́ Алекса́ндрович Га́ртман; September 21, 1885 – March 28, 1956) was a Russian composer and prominent student and collaborator of George Gurdjieff.

Thomas de Hartmann

Thomas Alexandrovich de Hartmann (Russian: Фома́ Алекса́ндрович Га́ртман; September 21, 1885 – March 28, 1956) was a Russian composer and prominent student and collaborator of George Gurdjieff.